Finding the Fourth Proportional to 26,621,919.09, 39,827,809.63 and 20,163,598.74
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Solution
The fourth proportional to 26,621,919.09, 39,827,809.63 and 20,163,598.74 is: 30,165,818.23
Step by Step Solution
- Step 1: Write the proportion equation
26,621,919.09 : 39,827,809.63 = 20,163,598.74 : x - Step 2: Convert to fraction form
26,621,919.09/39,827,809.63 = 20,163,598.74/x - Step 3: Cross multiply
26,621,919.09x = 39,827,809.63 × 20,163,598.74 - Step 4: Simplify right side
26,621,919.09x = 803,071,972,072,427.88 - Step 5: Solve for x
x = 803,071,972,072,427.88/26,621,919.09 - Step 6: Final answer
x = 30,165,818.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.